How does peripheral vision work?

Peripheral vision refers to a vision that lies outside the center of the vision field called fovea . The vision close to Fove is called almost peripheral, while the one that lies slightly further is called medium peripheral. At the very edge of our vision is far peripheral vision. Our peripheral vision is adapted to be able to understand shapes and forms to get a general impression of the situation. Fovea is much more adapted to distinguish fine details and color. Although we do not always consciously realize this, it is easy to observe. For example, we know that in order to read printed words on the page, we have to trace the narrow center field of our vision back and forth through the text. Part of the retina, where central vision occurs, is strongly full of cells known as conical cells that perceive colors and fine lines.

conical cells form only a small minority of retinal cells. The rest is known as the rod cells and they are best for receiving coarser and more general information. Peripheral vision, especially on a distant periphery, is mainly carried out by rod cells. These cells organize light from wide scenes and large objects and convert to nerve pulses that achieve the brain with an optical nerve in the back of the eye.

The fact that our vision is much more accurate and acute in the middle of our field of vision does not mean that peripheral vision is not lower, just that it achieves a different purpose. Indeed, if our entire field of vision was as accurate as Fove, the amount of information that our eyes sent to our brain would require much more energy. The cells of the rods that perform peripheral vision are also responsible for our ability to see in low -lit situations, for example at night. The cones only work for perception of color in well -lit environments. Although it is a vital importantOf course, it would be incomplete.